Vacuum-separator.



H. A. THUNEMAN.

VACUUM SEPARATOR.

APPLlcATxoN FILED' MAR.16.19|1.

SHEET 2.

2 SHEETS- Patented Got. 15, 1918.

Mf/ @l/? passing .is driven by the pulley 6.

HARRY A. THUNEMAN,

or s'r. Louis, Missoula. i

VACUUM-serenemon.

meneer.

Application led MarchlG, 1917.

To all whom t may concern.- Be it known that I, HARRY A. THUNEMAN, acitizen of the United States of America, and a resident of the city ofSt. Loiis and State of Missouri, have invented certain new and usefulImprovements in Vacuum- Separatore, of which the following is aspecification.

. The primary object of this invention is to provide an improvedseparator for crushed or pulverized materialstsuch as slate, limestone,coal, mineral ores, etc., in which the conveying means relative to*conveying the material through thev separator is brought about by theproduction of' a vacuum, and in which an improved regulating mechanismis made coperative with the ain currents that are produced by thecreated vacuumfso that the resultant product, which is allowed to passthrouV h the separator will be of a grade of the vesired ineness.

' Other and further objects will appear in y the specification and bespeciiically pointed out in the appended claims, reference being had tothe accompanying drawings exemplifying the invention, and in which:

Figure 1 is a vertical section of lthis im' proved separator, anintermediate portion thereof being broken away. l

Fig. 2 -is a horizontal section taken on the line 'II-II of Fig. 1.

Fig. 3 is a horizontal section taken onl the line III-III of Fig. 1.Fig. 4 is an enlarged fragmentary section taken on'the line IV-IV ofFig. 1.

Fig. 5 is an enlarged fragmentary section taken on the line V-V of Fig.2.

Referring to thedrawings, 1 designates an outer casi-ng, having anair-tight top 2, said casingbeing preferably of a.I tubularconstruction, and having its lower 'end 3 converging into a pipeformation so as to connect with the pipe 4, said pipe being incommunication with` an exhaust fan 5 which ,Leadin from said fan 5 is adischarge pipe 7. ocated in the casing'l and held at a distancel fromthe circular wall thereof by supporting brackets 8 is a hopper 9, andleading from the bottom of said hopper and through the inclined wall ofthe lower e'nd 3 of the casing 1 vis a'discharge pipe 10. Embracing theupper end 11 of the hopper 9 and surrounding the outer wall Y thereof isone end of a telescoping member Specicatioiiof Letters Patent.

. 16 byl the Patented oet. i5', isis'.

Serial No. 155,183. I

12, said member 12 being slidably related `to the upper end of saidhopper 9, and slidably related to the upper end of said telescopingmember 12 is another telescoping member 13. These telescoping memberscan be of any desired number, the uppermost telescoping member bearing across bar 14. Coiicentrically arranged in and adjacent the upper en d ofthe hopper 9 and supported thereto by a plurality of braces 15, is anopen ended receiving member 16, saidmember 16 comprising a pair offrus'tums, one of which is inverted, the base portion of the lowerfrustum adjoining the base portion of the upper frustum.-

Concentrically arranged in said receiving member 16 is a combinedupwardly and downwardly deflecting member 17, said deflector beingsupported from said member braces 18 and being additionally supported bythe vertically arranged support 19 which is'suspended from the top 2.rIransversely arranged adjacent the upper end of the receiving member 16is a shaft 20, and secured to said shaft are a pair of sprockets 21,each of said sprockets having an endless chain 22 mounted thereon, eachof said chains having their upper ends er1- gage a respective sprocket23, 4said sprockets 23 1)ein mounted on al horizontally arranged s aft24 which'is supported by the are suspended from the top 2. One end ofthe shaftA 24 extends through the wall of thecasing 1, said eX- tendedend having a crank 26 secured thereto. Each of the chains 22 are securedto the cross bar 14 which is carried by the upper bearings 2.5 thattelescoping member 13, as designated at 27.

Extending into the lowerend of the member 16, and being in concentricrelation with the defiector 17 is an intake pipe 28, and secured to saidpipe adjacent the upperA end thereof is a spreader 29. This'pipe 28 eX-tends through the walls of the ,hopper 9 and lower end 3 of the Vcasing1, an 'is adapted to lead from' a pulverizing device, said pipe servingas a convey from the pulverizer to the separator.

In the operation of this improved separator, the intakepipe 28,

as afore related, A

being in communication with a pulverizer, a

4will serve asA -a conveyer for the pulverized products when the suctionfan 5 bis putin operation,

as air willbe entrained throughv saidvpipe `28 into the receiving member16,

the plurality through of telescoping memf product bers, then down thevertical passageway 30 which surrounds the. telescoping members throughpipe 4 into the fan 5 and discharged through the discharge pipe 7.

As the pulverized products emerge from the pipe 28 along with the aircurrent entrained therethrough, the same will strike against thedeflecting member 17, thereby throwing the pulverized productsoutwardly, and inasmuch as the diametric area of the receiving member 16is greater than the diametric area of the pipe 28, the carrying forcesof the discharged air current from the pipe 28 will be somewhatweakenedyin which the heavier particles of the pulverized product willfall downwardlyon account of the fact that the created air force is notgreat enough to carry them farther, said heavier particles falling ing31 of the receiving member. 16, into the hopper 9 and dischargingthrough the ipe 10. The lighter particles of the pulverlzed will becarried on upwardly, outl of the receiving member 16, and into theplurality of telescoping sections 12, and inasmuch as the diametric areaof said telescoping sections is greater than the diametrlc area of thereceiving member 16, the coarser or heavier pulverized particles thatare then left, after the same has reached the sections 12, will falldownwardly and pass through the circular passageway 32, which is formedbetween'the member 16 and the upper end 11 of the hopper 9, and finallydepositing in the discharge pipe 10. The finer particles of thepulverized product will be forced on upwardly and over the top of theuppermost telescoping section 13 and be entrained in the passageway 30which is formed between thecasing 1 and the outside Walls of the telescoping sections 12and 13, said passageway leading to the pipe 4,through the exhaust fan 5, and finally discharged through the dischargepipe 7 to a depositing receptacle, (not shown).

. From the aforesaid description of this lmproved separator, it is selfevident that the forces ofthe entrained air currents from .the pipe 28will diminish more and more as they are extended into larger areas. Itis therefore seen that the air currents will not have the lifting volumerelative to the pulverized particles when said air `currents reach aplane adjacent the uppermost tele- `scopmg section 13, as against theforces of said air currents when said air currents were lon a planeadjacentthe lowermost telescoping section 12. In this connection,attention is called to the collapsible nature of the telescopingsections, length of all the sections can be reduced,V to

any required length by the manipulation of the shaft 24,l which whenoperated on b the crank 26 and turned in a left hand direction, willAforce the uppermost section 13 through the openy in which the totaldownwardly, said uppermost section in turn forcing each succeedingsection down .vai-diy, on account of the fact that the chains 22,relative to the sprockets 21 and 23, respectively, are secured to thecross bar 14, there-` by decreasing` the distance from the receivingmember 16 and the point of communication with the passageway 30.

From the aforesaid it is to be seen that coarser pulverized materialscan be carried on upwardly and discharged over the uppermost section 13into the passageway 30, along with the finer particles, whereas if thetelescoping members are extended so that the uppermost section 13 willbe at a greater distance away from the receiving member 16, the force ofthe air currents will not be great enough to lift the coarse particles,but

will only be of such a force whereby the liner particles will be carriedover the upper section 13, thereby depositing lonly the finest lofmaterial into the receiving receptacle.

Ina device of this improved character, it is essential that thecompartment comprised in the casing 1 be air tight, the source of intakebeing through the pipe 28 only. In this connection, an air trap asdesignated by 33 is located in the discharge pipe 10.

The coarse'r particles of pulverized material which were allowed to fallinto the hopper 9 and discharge pipe 10 areadapted to be conveyedthrough said pipe l() to the pulverizer, not shown, to be reground. Inorder to provide means for preventing the sections 12 and 13 from beingpulled apart, an inner ring 34, which is carried by the lower end of theupper sectionv 13 and bythe lower-ends of each succeeding section 12,are adapted to coperate with respective outer rings 35, which arecarried on the outside of the upper end of each section 12, (see Fig.5).

What I claim is:

1. A separator comprising a closure, an outlet for said closure, atelescoping member located in said closure and a material feed pipeleading to the lower end of said member.

2. A separator comprising a closure, an outlet for said closure, areducibly mounted sleevelikemember located in said closure, a suctionlmaterial pipe leading to the lower end of said member, and means wherebya vacuum is created through said member.

3. A separator comprising a closure, a reducibly mounted sleevelikemember located in said closure, an inlet passageway for feeding materialto the lower end of said member, and an outlet passageway leading fromthe u per end of said member;

4. separator comprising a closure, a telescoping member located in saidclosure, and an inlet material passageway leading to the lower end ofsaid member, and a deflecting member located above said passageway.

5. A separator comprising a closure, a telescoping member located insaid closure, a feed conveye'r passageway leading to the lower end ofsaid member, a deflecting member located above said passageway, meansfor reducing said telescoping member, and an outlet passageway leadingfrom said telescoping member.

6. A separator comprising a closure, a sleevelike member comprised of aplurality of telescoping sections located in said closection.

HARRY-A. THUNEMAN.

VVitnes-ses THOS. J. S'rODnARD7 A. F. XVEISBRAD.

